Minimizing the message header in Outlook 2013

The somewhat huge message header in Outlook 2013 has been an eyesore and annoyance to some since the release of Outlook 2013, especially for people who prefer to have the Reading Pane at the bottom.

The November update not only brought back some highly missed To-Do Bar functionality but also quite some major changes and options to the message header.

Did you find the minimize option for the message header already?